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srsLTE
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This commit is contained in:
Ismael Gomez 2018-04-29 17:26:19 +02:00
parent 346a73b5e7
commit ee2c0db15a
1 changed files with 18 additions and 18 deletions
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36
srsue/src/phy/phch_recv.cc
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@ -1174,27 +1174,27 @@ phch_recv::measure::ret_code phch_recv::measure::run_multiple_subframes(cf_t *in
ret_code ret = IDLE;
offset = offset-sf_len/2;
while (offset < 0 && sf_idx < max_sf) {
Info("INTRA: offset=%d, sf_idx=%d\n", offset, sf_idx);
offset += sf_len;
int sf_start = offset-sf_len/2;
while (sf_start < 0 && sf_idx < max_sf) {
Info("INTRA: sf_start=%d, sf_idx=%d\n", sf_start, sf_idx);
sf_start += sf_len;
sf_idx ++;
}
#ifdef FINE_TUNE_OFFSET_WITH_RS
float max_rsrp = -200;
int best_test_offset = 0;
int test_offset = 0;
int best_test_sf_start = 0;
int test_sf_start = 0;
bool found_best = false;
// Fine-tune offset using RS
// Fine-tune sf_start using RS
for (uint32_t n=0;n<5;n++) {
test_offset = offset-2+n;
if (test_offset >= 0) {
test_sf_start = sf_start-2+n;
if (test_sf_start >= 0) {
cf_t *buf_m[SRSLTE_MAX_PORTS];
buf_m[0] = &input_buffer[test_offset];
buf_m[0] = &input_buffer[test_sf_start];
uint32_t cfi;
if (srslte_ue_dl_decode_fft_estimate_noguru(&ue_dl, buf_m, sf_idx, &cfi)) {
@ -1205,25 +1205,25 @@ phch_recv::measure::ret_code phch_recv::measure::run_multiple_subframes(cf_t *in
float rsrp = srslte_chest_dl_get_rsrp(&ue_dl.chest);
if (rsrp > max_rsrp) {
max_rsrp = rsrp;
best_test_offset = test_offset;
best_test_sf_start = test_sf_start;
found_best = true;
}
}
}
Debug("INTRA: fine-tuning offset: %d, found_best=%d, rem_sf=%d\n", offset, found_best, nof_sf);
Debug("INTRA: fine-tuning sf_start: %d, found_best=%d, rem_sf=%d\n", sf_start, found_best, nof_sf);
offset = found_best?best_test_offset:offset;
sf_start = found_best?best_test_sf_start:sf_start;
#endif
if (offset >= 0 && offset < (sf_len*max_sf)) {
if (sf_start >= 0 && sf_start < (sf_len*max_sf)) {
uint32_t nof_sf = (sf_len*max_sf - offset)/sf_len;
uint32_t nof_sf = (sf_len*max_sf - sf_start)/sf_len;
final_offset = offset;
final_offset = sf_start;
for (uint32_t i=0;i<nof_sf;i++) {
memcpy(buffer[0], &input_buffer[offset+i*sf_len], sizeof(cf_t)*sf_len);
memcpy(buffer[0], &input_buffer[sf_start+i*sf_len], sizeof(cf_t)*sf_len);
ret = run_subframe((sf_idx+i)%10);
if (ret != IDLE) {
return ret;
@ -1233,7 +1233,7 @@ phch_recv::measure::ret_code phch_recv::measure::run_multiple_subframes(cf_t *in
return MEASURE_OK;
}
} else {
Error("INTRA: not running because offset=%d, sf_len*max_sf=%d*%d\n", offset, sf_len, max_sf);
Error("INTRA: not running because sf_start=%d, offset=%d, sf_len*max_sf=%d*%d\n", sf_start, offset, sf_len, max_sf);
ret = ERROR;
}
return ret;